Transmission Parts

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8L45, 8L90 S2/S3/S4/TCC Clutch Control Valve Kit 154740-11K

8L45 • 8L90

S2/S3/S4/TCC Clutch Control Valve Kit 154740-11K

Fits any of 4 locations, S4 location fits ’18-earlier only.

    Helps cure:
  • Burnt clutches
  • Pressure loss
  • Poor shift quality
  • Burnt converter
  • TCC apply & release concerns
8L45, 8L90 TCC Zip Kit® 8L45-8L90-TCC-ZIP

8L45 • 8L90

TCC Zip Kit® 8L45-8L90-TCC-ZIP

For converter-related complaints.

    Helps cure:
  • TCC apply & release concerns
  • Overheated transmission & converter
  • Loss of cooler flow
  • Loss of lube oil
  • Burnt converter
  • High TCC slip RPM
  • Code P0218
  • Code P0741
8L45, 8L90 Shift Zip Kit® 8L45-8L90-SHIFT-ZIP

8L45 • 8L90

Shift Zip Kit® 8L45-8L90-SHIFT-ZIP

For shift-related complaints.

    Helps cure:
  • Poor shift quality
  • Burnt clutches
  • Flare shifts
  • Soft shifts
  • Clutch slippage
  • Low line pressure
  • Ratio codes
8L45, 8L90 Shuttle Valve Kit 154740-09K

8L45 • 8L90

Shuttle Valve Kit 154740-09K

    Helps cure:
  • High line pressure
  • Harsh shifts
  • Low cooler flow
  • Loss of lube oil
  • Overheated transmission & converter
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